1 files changed, 1 insertions, 0 deletions
diff --git a/src/qml/memory/qv4mm_p.h b/src/qml/memory/qv4mm_p.h
index e68fc07a46..dfa0d85dff 100644
--- a/src/qml/memory/qv4mm_p.h
+++ b/src/qml/memory/qv4mm_p.h
@@ -111,6 +111,7 @@ public:
         V4_ASSERT_IS_TRIVIAL(typename ManagedType::Data)
         size = align(size);
         Heap::Base *o = allocData(size, unmanagedSize);
+        memset(o, 0, size);
         o->setVtable(ManagedType::staticVTable());
         return static_cast<typename ManagedType::Data *>(o);
     }